CN105038254A - Silicone rubber composite material used for seal rings and preparation method thereof - Google Patents
Silicone rubber composite material used for seal rings and preparation method thereof Download PDFInfo
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- CN105038254A CN105038254A CN201510313804.1A CN201510313804A CN105038254A CN 105038254 A CN105038254 A CN 105038254A CN 201510313804 A CN201510313804 A CN 201510313804A CN 105038254 A CN105038254 A CN 105038254A
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Abstract
The invention provides a silicone rubber composite material used for seal rings. The composite material is prepared from the following components in parts by weight: 100 parts of silicone rubber, 0.5-1.5 parts of peroxidation vulcanizing agent, 10-15 parts of fluoroether rubber, 20-30 parts of plaster fibers, 25-35 parts of fillers, 1-3 parts of coupling agent, 0.5-1 part of release agent, 2-3 parts of anti-aging agent, 12-15 parts of plasticizer and 1.5-2 parts of softening agent. The invention also provides a preparation method of the composite material. With good tensile strength and oil resistance, the silicone rubber composite material used for seal rings, which is provided by the invention, can be used on various occasions.
Description
Technical field:
The present invention relates to a kind of matrix material, particularly relate to a kind of silicon rubber composite material for sealing-ring and preparation method thereof.
Background technology:
Silicon rubber refers to that main chain is alternately made up of silicon and Sauerstoffatom, Siliciumatom is connected with usually the rubber of two organic groups.Common silicon rubber is primarily of the silica chain link composition containing methyl and a small amount of vinyl.The introducing of phenyl can improve the high-and low-temperature resistance performance of silicon rubber, and the introducing of trifluoro propyl and cyano group then can improve heatproof and the oil resistance of silicon rubber.Silicon rubber resistance to low temperature is good, generally endure at-55 DEG C, after introducing phenyl, can reach-73 DEG C.The resistance toheat of silicon rubber is also very outstanding, can long term operation at 180 DEG C, a little higher than 200 DEG C also can bear several weeks or the longer time still flexible, instantaneous can the high temperature of resistance to more than 300 DEG C.The good permeability of silicon rubber, OTR oxygen transmission rate is the highest in synthetic polymer, and in addition, silicon rubber also has physiological inertia, can not cause the outstanding characteristic of blood coagulation, is therefore widely used.Silicone rubber O-ring is one of main application of silicon rubber, compares the sealing-ring of other materials, and it has better heat-resisting, cold-resistant, resistance to ozone, resistance to weathering energy and insulating property.
Such as, the Chinese patent application that publication number is CN103483818A, publication date is 2014.01.01, application people is great river, Wuwei County product of rubber and plastic company limited discloses " a kind of formula of low temperature resistant silicone rubber O-ring ", this formula comprises low-phenyl silicone rubber, t-butylperoxyl benzoate, silicon-dioxide, silica powder, Diphenylsilanediol, and shared by described each component, mass percent is as follows: low-phenyl silicone rubber 75% ~ 86%, t-butylperoxyl benzoate 4% ~ 7%, silicon-dioxide 2% ~ 6%, silica powder 5% ~ 10%, Diphenylsilanediol 2% ~ 6%.This invention have reasonable ratio, stable performance, with low cost, the advantages such as sealing-ring Forming Quality can be ensured, improve the productivity effect of factory.The defect that but this formula exists is: tensile strength and oil-proofness are not good, limit its application scenario.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of silicon rubber composite material for sealing-ring, has good tensile strength and oil-proofness, can be used for multiple occasion.
For solving the problems of the technologies described above, technical scheme of the present invention is:
For a silicon rubber composite material for sealing-ring, by weight, be made up of following component:
Preferably, silicon rubber of the present invention is methyl vinyl silicone rubber.
Preferably, sulfuric peroxide agent of the present invention is DHBP.
Preferably, filler of the present invention is at least one in mica powder, titanium dioxide, gas-phase silica, diatomite.
Preferably, coupling agent of the present invention is A-151.
Preferably, releasing agent of the present invention is organic silicone oil.
Preferably, anti-aging agent of the present invention is antioxidant 4010NA.
Preferably, softening agent of the present invention is dimethyl silicone oil.
Preferably, tenderizer of the present invention is triglyceride level.
Another technical problem that the present invention will solve is to provide the preparation method of the above-mentioned silicon rubber composite material for sealing-ring.
For solving the problems of the technologies described above, technical scheme is:
For a preparation method for the silicon rubber composite material of sealing-ring, its step is as follows:
(1) coupling agent being dissolved in massfraction is mix the coupling agent solution that obtained massfraction is 3% in the ethanolic soln of 10%, add in coupling agent solution after gypsum fiber being cut into 1mm length, soaking moved in water bath with thermostatic control after 10 minutes, heat 1 hour at 90 DEG C, deionized water wash 3 times are used after taking out, to be placed at 95 DEG C, loft drier dry 4 hours, to obtain modified gypsum fiber;
(2) silicon rubber and other components are added mixing machine and mix 10 minutes obtained blend glue stuffs, blend glue stuff is cut into length, width is 4mm, material block that thickness is 1mm, obtained pasty state material after dissolving with toluene, the modified gypsum fiber that step (1) obtains is mixed with pasty state material, treat that toluene volatilization is placed in mill the film being rolled into 2mm, film to be moved in vulcanizing press under temperature 155 DEG C, pressure 5MPa sulfuration 25 minutes, obtain the silicon rubber composite material for sealing-ring.
Therefore compared with prior art, the present invention has following beneficial effect:
1) bond distance that the fluorine atom in fluoroether rubber has great sucting electronic effect simultaneously C-F key is shorter, fluoroether rubber is caused to have extremely strong chemical resistant properties, almost to all chemical, all there is excellent tolerance, in silicone rubber matrix, fluoro-containing group is introduced after blended with silicon rubber, good shielding effect can be played to C-C key, therefore greatly can improve the oil-proofness of matrix material; In addition, sulfuric peroxide agent effectively can improve the vulcanization crosslinking density of silicon rubber, thus improves the oil-proofness of matrix material further.
2) gypsum fiber is the fibrous single crystal of calcium sulfate, it is a kind of inorganic materials with high mechanical strength, high-modulus, it is after coupling agent treatment, coupling agent serves function served as bridge, make can form good interface cohesion between gypsum fiber and silicone rubber matrix, gypsum fiber can play good enhancement to silicone rubber matrix, effectively improves the tensile strength of matrix material; In addition, gypsum fiber can form reticulated structure in silicone rubber matrix, plays good restriction, further increase the oil-proofness of matrix material to swelling in oiliness environment of matrix material.
Embodiment:
Describe the present invention in detail below in conjunction with specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment 1
A kind of silicon rubber composite material for sealing-ring, by weight, be made up of following component: methyl vinyl silicone rubber 100 parts, DHBP0.8 part, fluoroether rubber 14 parts, gypsum fiber 25 parts, mica powder 25 parts, A-1511.5 part, organic silicone oil 0.8 part, antioxidant 4010NA 2.7 parts, dimethyl silicone oil 15 parts, triglyceride level 1.6 parts.
The step of its preparation method is as follows:
(1) coupling agent being dissolved in massfraction is mix the coupling agent solution that obtained massfraction is 3% in the ethanolic soln of 10%, add in coupling agent solution after gypsum fiber being cut into 1mm length, soaking moved in water bath with thermostatic control after 10 minutes, heat 1 hour at 90 DEG C, deionized water wash 3 times are used after taking out, to be placed at 95 DEG C, loft drier dry 4 hours, to obtain modified gypsum fiber;
(2) silicon rubber and other components are added mixing machine and mix 10 minutes obtained blend glue stuffs, blend glue stuff is cut into length, width is 4mm, material block that thickness is 1mm, obtained pasty state material after dissolving with toluene, the modified gypsum fiber that step (1) obtains is mixed with pasty state material, treat that toluene volatilization is placed in mill the film being rolled into 2mm, film to be moved in vulcanizing press under temperature 155 DEG C, pressure 5MPa sulfuration 25 minutes, obtain the silicon rubber composite material for sealing-ring.
Embodiment 2
A kind of silicon rubber composite material for sealing-ring, by weight, be made up of following component: methyl vinyl silicone rubber 100 parts, DHBP1 part, fluoroether rubber 12 parts, gypsum fiber 27 parts, titanium dioxide 30 parts, A-1511 part, organic silicone oil 0.6 part, antioxidant 4010NA 2.5 parts, dimethyl silicone oil 13 parts, triglyceride level 1.5 parts.
Its preparation method in the same manner as in Example 1.
Embodiment 3
A kind of silicon rubber composite material for sealing-ring, by weight, be made up of following component: methyl vinyl silicone rubber 100 parts, DHBP0.9 part, fluoroether rubber 15 parts, gypsum fiber 20 parts, mica powder 34 parts, A-1512.5 part, organic silicone oil 0.7 part, antioxidant 4010NA 2 parts, dimethyl silicone oil 14.5 parts, triglyceride level 1.8 parts.
Its preparation method in the same manner as in Example 1.
Embodiment 4
A kind of silicon rubber composite material for sealing-ring, by weight, be made up of following component: methyl vinyl silicone rubber 100 parts, DHBP0.5 part, fluoroether rubber 10 parts, gypsum fiber 21 parts, mica powder 32 parts, A-1512.4 part, organic silicone oil 1 part, antioxidant 4010NA 2.4 parts, dimethyl silicone oil 12 parts, triglyceride level 2 parts.
Its preparation method in the same manner as in Example 1.
Embodiment 5
A kind of silicon rubber composite material for sealing-ring, by weight, be made up of following component: methyl vinyl silicone rubber 100 parts, DHBP1.5 part, fluoroether rubber 13 parts, gypsum fiber 24 parts, mica powder 35 parts, A-1513 part, organic silicone oil 0.5 part, antioxidant 4010NA 3 parts, dimethyl silicone oil 12.5 parts, triglyceride level 1.9 parts.
Its preparation method in the same manner as in Example 1.
Embodiment 6
A kind of silicon rubber composite material for sealing-ring, by weight, be made up of following component: methyl vinyl silicone rubber 100 parts, DHBP1.4 part, fluoroether rubber 11 parts, gypsum fiber 30 parts, mica powder 28 parts, A-1512 part, organic silicone oil 0.9 part, antioxidant 4010NA 2.1 parts, dimethyl silicone oil 14 parts, triglyceride level 1.7 parts.
Its preparation method in the same manner as in Example 1.
After tested, tensile strength and the oil-proofness of embodiment 1-6 and comparative example are as shown in the table, wherein,
The Chinese patent of comparative example to be publication number be CN103483818A,
Tensile strength is according to ASTMD412 standard testing, and determinand makes dumbbell shaped,
Oil-proofness test process is with reference to GB/T1690-2009: determinand is placed in gasoline soaking at room temperature one week, and the mass change of test determinand characterizes oil-proofness, and mass change is lower, and oil-proofness is better:
Mass change=(before soaking the rear quality of quality-immersion)/soak front quality × 100%
As seen from the above table, tensile strength of the present invention and oil-proofness are all significantly better than comparative example.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. for a silicon rubber composite material for sealing-ring, it is characterized in that: by weight, be made up of following component:
2. a kind of silicon rubber composite material for sealing-ring according to claim 1, is characterized in that: described silicon rubber is methyl vinyl silicone rubber.
3. a kind of silicon rubber composite material for sealing-ring according to claim 1, is characterized in that: described sulfuric peroxide agent is DHBP.
4. a kind of silicon rubber composite material for sealing-ring according to claim 1, is characterized in that: described filler is at least one in mica powder, titanium dioxide, gas-phase silica, diatomite.
5. a kind of silicon rubber composite material for sealing-ring according to claim 1, is characterized in that: described coupling agent is A-151.
6. a kind of silicon rubber composite material for sealing-ring according to claim 1, is characterized in that: described releasing agent is organic silicone oil.
7. a kind of silicon rubber composite material for sealing-ring according to claim 1, is characterized in that: described anti-aging agent is antioxidant 4010NA.
8. a kind of silicon rubber composite material for sealing-ring according to claim 1, is characterized in that: described softening agent is dimethyl silicone oil.
9. a kind of silicon rubber composite material for sealing-ring according to claim 1, is characterized in that: described tenderizer is triglyceride level.
10. the preparation method of a kind of silicon rubber composite material for sealing-ring according to claim 1 ~ 9 any one, is characterized in that: its step is as follows:
(1) coupling agent being dissolved in massfraction is mix the coupling agent solution that obtained massfraction is 3% in the ethanolic soln of 10%, add in coupling agent solution after gypsum fiber being cut into 1mm length, soaking moved in water bath with thermostatic control after 10 minutes, heat 1 hour at 90 DEG C, deionized water wash 3 times are used after taking out, to be placed at 95 DEG C, loft drier dry 4 hours, to obtain modified gypsum fiber;
(2) silicon rubber and other components are added mixing machine and mix 10 minutes obtained blend glue stuffs, blend glue stuff is cut into length, width is 4mm, material block that thickness is 1mm, obtained pasty state material after dissolving with toluene, the modified gypsum fiber that step (1) obtains is mixed with pasty state material, treat that toluene volatilization is placed in mill the film being rolled into 2mm, film to be moved in vulcanizing press under temperature 155 DEG C, pressure 5MPa sulfuration 25 minutes, obtain the silicon rubber composite material for sealing-ring.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542362A (en) * | 2016-01-26 | 2016-05-04 | 孟根森 | Sealing ring material for automobile bearings |
| CN105693956A (en) * | 2016-03-14 | 2016-06-22 | 苏州莱特复合材料有限公司 | Preparation method of fatigue-resistant fender composite material for fenders |
| CN106674840A (en) * | 2016-12-30 | 2017-05-17 | 安徽京鸿密封件技术有限公司 | Engine crankshaft oil seal and preparation method thereof |
| CN106702755A (en) * | 2017-01-06 | 2017-05-24 | 广州市聚吉科绿色化学共性技术研究院有限公司 | High-performance silicone/fluoroether composite rubber glove and preparation method thereof |
| CN106916454A (en) * | 2017-03-02 | 2017-07-04 | 沈阳化工大学 | A kind of flame-proof abrasion-resistant silicon rubber composite material and preparation method thereof |
| CN107216657A (en) * | 2017-07-20 | 2017-09-29 | 合肥工业大学 | Glass rim cup lid anti-sticking non-toxic seal packing ring polyolefin elastomer modified silicon rubber composite and preparation method |
| CN107266915A (en) * | 2017-07-07 | 2017-10-20 | 东莞市联洲知识产权运营管理有限公司 | A kind of anti-aging sealing ring silicon rubber composite material and preparation method thereof |
| WO2018036431A1 (en) * | 2016-08-22 | 2018-03-01 | 广东纳路纳米科技有限公司 | Modified nanocomposite silicone rubber seal ring and preparation thereof |
| CN109777115A (en) * | 2018-12-12 | 2019-05-21 | 广东聚合科技股份有限公司 | A kind of automobile engine sealing ring silicon rubber and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542362A (en) * | 2016-01-26 | 2016-05-04 | 孟根森 | Sealing ring material for automobile bearings |
| CN105693956A (en) * | 2016-03-14 | 2016-06-22 | 苏州莱特复合材料有限公司 | Preparation method of fatigue-resistant fender composite material for fenders |
| WO2018036431A1 (en) * | 2016-08-22 | 2018-03-01 | 广东纳路纳米科技有限公司 | Modified nanocomposite silicone rubber seal ring and preparation thereof |
| CN106674840A (en) * | 2016-12-30 | 2017-05-17 | 安徽京鸿密封件技术有限公司 | Engine crankshaft oil seal and preparation method thereof |
| CN106702755A (en) * | 2017-01-06 | 2017-05-24 | 广州市聚吉科绿色化学共性技术研究院有限公司 | High-performance silicone/fluoroether composite rubber glove and preparation method thereof |
| CN106702755B (en) * | 2017-01-06 | 2019-01-18 | 顺泰精密橡胶（深圳）有限公司 | A kind of high performance silicon/fluorine ether compounded rubber gloves and preparation method thereof |
| CN106916454A (en) * | 2017-03-02 | 2017-07-04 | 沈阳化工大学 | A kind of flame-proof abrasion-resistant silicon rubber composite material and preparation method thereof |
| CN107266915A (en) * | 2017-07-07 | 2017-10-20 | 东莞市联洲知识产权运营管理有限公司 | A kind of anti-aging sealing ring silicon rubber composite material and preparation method thereof |
| CN107216657A (en) * | 2017-07-20 | 2017-09-29 | 合肥工业大学 | Glass rim cup lid anti-sticking non-toxic seal packing ring polyolefin elastomer modified silicon rubber composite and preparation method |
| CN109777115A (en) * | 2018-12-12 | 2019-05-21 | 广东聚合科技股份有限公司 | A kind of automobile engine sealing ring silicon rubber and preparation method thereof |
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Application publication date: 20151111 |